I agree with Will.
The body armor gave you protection and it grew onto you. Now where you don't normally need it, you feel vulnerable. Talking to a professional doesn't mean you're crazy, you just need help adjusting back to the life where not having body armor on doesn't mean you're a prime target.
Some might be able to adjust easily, some might need help with adjusting. Speak to a psychologist and hopefully they'll be able to help you overcome it
